Update the class SpellCheckerRequest and move it to namespace EPiServer.TinyMCESpellChecker.Models.

The classes CheckSpellingResponse and SpellSuggestionResponse have been removed.

The SpellChecker button is automatically added to TinyMce editor. Previously, this had to be added from the admin view.

The following new interfaces have been added:

ISpellCheckerServiceImplement this interface to handle parsing spellchecker requests (the request is in URL encoded format; previously, the request was in JSON format), and getting correct suggestions for a list of misspelled words. The default implementation is SpellCheckerService.

ISpellCheckerDictionaryImplement this interface to handle spell checking and getting correct suggestions for a word. The default implementation is SpellCheckerDictionary.